Step stool



FIG. 1 is a perspective view of a first embodiment of a step stool with rollers of our design;

FIG. 2 is an elevational view of one side thereof, the opposite side being substantially a mirror image thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view of a second embodiment of a step step stool with rollers of our design and having a lesser height than that depicted in FIG. 1;

FIG. 8 is an elevational view of one side thereof, the opposite side being substantially a mirror image thereof;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a top plan view thereof;

FIG. 12 is a bottom plan view thereof;

FIG. 13 is a perspective view of a third embodiment of a step step stool of our design without rollers;

FIG. 14 is an elevational view of one side thereof, the opposite side being substantially a mirror image thereof;

FIG. 15 is a front elevational view thereof;

FIG. 16 is a rear elevational view thereof;

FIG. 17 is a top plan view thereof;

FIG. 18 is a bottom plan view thereof;

FIG. 19 is a perspective view of a fourth embodiment of a step stool of our design having single step;

FIG. 20 is an elevational view of one side thereof, the opposite side being substantially a mirror image thereof;

FIG. 21 is a front elevational view thereof, the opposite side being substantially a mirror image thereof;

FIG. 22 is a top plan view thereof; and,

FIG. 23 is a bottom plan view thereof. 

The ornamental designs for step stool, as shown and described. 